A digital multi-functional peripheral is provided with a touch panel for displaying various information, a reading portion for reading an original and inputting image data, an NCU for sending the image data, a preview image generating portion for generating a preview image of the image data, and a panel control portion for causing the touch panel to display the preview image of the image data before performing image sending by the NCU. When an instruction to start reading of an original by a user is received, the panel control portion causes the touch panel to display a sending destination confirmation screen for confirming a sending destination of the image data, and after the confirmation input is performed by the user to the sending destination confirmation screen, causes the touch panel to display the preview image of the image data.